<html>
<body>

<h4 th:text="|Hi, ${customer}, these're your pets|"></h4>
<hr></hr>

<table>
  <tr>
    <th>name</th>
    <th>type</th>
    <th>age</th>
  </tr>
  <tr th:each="p : ${pets}">
    <td th:text="${p.name}"></td>
    <td th:text="${p.type}"></td>
    <td th:text="${p.age}"></td>
  </tr>
</table>

<img src="cid:soft"></img>
</body>
</html>